Disease, amyotrophic lateral sclerosis (ALS) or disease Le (Lou Gehrig's Disease) is a disease of the motor neuron, motor, or (MND or Motor Neuron Disease)that cause ruin and destruction of the progressive and impossible to repair in the central nervous system (brain and spinal cord) nervous system peripheral. Amyotrophic lateral sclerosis is the most common disease of motor neurons (MND).So this disease also the symptoms of the neurons driving the upper and the signs of the neurons driving the lower creates. In fact, in ALS, the symptoms of paralysis of the central and peripheral " to be created.

the disease leads to gradual loss of function of the muscles (especially the muscles, striated) can be, and weakening of the muscles, gradually the person to paralyze the public with. So that the ability of any movement from the person stripping will be. Usually, patients with this disease a long time did not survive. Although the duration for Stephen Hawking, a 2 to 3 year forecast was made, but he, despite all the difficulties and discomfort, continue to live your life and continues for the arrival of death, the moment some does not. Patients with this disease usually suffer from the inability of the motor and 3 to 5 years after catching the disease lost their lives. Although 20% of these patients, 5-year and 10% up to 10 years, they'd survive. In this disease, central nervous system and the muscles, especially the muscles of the hands, the feet, forearms, head and neck, severely hurt.